Jack



i a citizen of] the United States, residing at Patented Feb. 20, was,

Application filed February 21, 1922*. 'seria fnojteaser. I v

T all whomz't may come-m Be it" known'that I',-WILLIAM T. GULLEDGE,

Matthews, in the countyof Mecklenburg and State of North Carolina, have invented certain new and useful Improvements in Jacks,

' of which the followingvis a specification.

My invention relates to jacks and has particular reference to a combinationtire rim and vehicle jack, the primary object being the provision of a simple device which isreadily adaptable to engage a tire rim for tire mounting purposes, or to be usedin the ordinary way as a vehicle jack.

Another object of the invention is to provide in a jack of this character novel means for reversing the direction of the travel of the plunger and also novel-means for lockv Jparts. a a y In this embodiment of the invention, the" ing the plunger in any position as desired.

A further obj ectof the invent-ionis to pro vide in a jack of this character, ,novel pawl and-ratchet mechanism to assist in the accomplishment of the purpose outlined.

' lVith these and such other objects in view as will be apparent from the description, my

inafter described and claimed, and illustrated in the accompanying drawings, of which c Figure 1, a ment of the invention; I I

Figure 2, a vertical section taken at right angles to Figure 1; j

Figure 3, a top plan view;,and Figure 4, a horizontal section onthe line I 101O of Figure 2. I

In detail the invention comprises a plunger 30 consisting of a rotatable screw threaded member disposed longitudinally of a casing 20 and engaged at the outer end of the casing through a plate 21 apertured at its center and interiorly threaded to receive, therethrough the plunger, whereby when; rotary movement is irnparted to the plunger the same will be carried throughthe plate in an obvious manner.- The extreme inner end of the plunger is provided with a squared portion 31, and theportion of the plunger directly adjacent thereto is devoid of threads for a space, asindicated at 32,

- for a-purpose hereinafter described. A gear wheel'33 is mounted on thesquared end of the plunger, being suitably secured thereto,

and carrying an enlarged ratchet wheel 34:.

In this construction the casing is open at.

vertical section of an'embodi plunger and carrying a double-ended pawl member 37 to engage the-teeth of ratchet wheel 34, whereby upon movement of the handle, rotation will be imparted to -tlhe ratchet ,wheel and plunger upon which,

owing to the threaded engagement of the upper end of the plunger with the plate21,

the plunger will be moved longitudinally of the casing. A reversal of the pawl "will accomplish a reverse movement of the plunger', as is obvious. The mounting of the pawl is similar to the mounting of the pawl described in the preferred form of the invention and it is not deemednecessaryto,

refer specifically to the mountingof the casing is provided with'a longitudinal slot 38, in one side, and disposed in'this slot is a slidable bar 39 carrying an axle support I ing bracket 40, extending through the slot at the side of the casing, and beyond theend plate 21 of the casing the bar is bent laterally and apertured at its free end ll to rest over and engage the outer end of the plun ger 30, which is provided witha shoulder 42, at this point. By this construction, it is obvious that when the plunger is moved l0ngitudinally of the casing the bar'39, and consequently the bracket 40, will be carried therewith. j

While I have described and illustrated certain forms and details and materials j which enter into the construction and 013- eration of my invention, I desire it to be" understood that I do not intend to limit myself to these, but that any such may be."

vention as claimed.

Icl'a imz" j I 1; A'jack ofthe character described comprovided with an lnternally threaded bore therethrough, a screw threadedplunger used aswill fall withinthe scope of the inprising a casing, an endplate insaid casing threaded insaid bore "forsupportingengageinentwith said plate, a ratchet wheel secured on the opposite end of said plunger, an Opcrating handle pivoted over said'plunger and adjacent said ratchet wheel, a pawl member carried by said operating handle andadapted' to engage said ratchet wheel,

whereby rotation is imparted through said wheel to the plunger, one side of said casing and havinga threaded bore therethrough, a

screw-threaded plunger rotatably disposed in said bore and adapted to extend through said plate, pawl and ratchet mechanism carried by the inner end of said plunger, an operating handle for said pawl and ratchet mechanism, said handle extending through one side of the casing, one Wall of said casing being slotted, a bar slidably disposed in said slot and extending through the plunger end of said casing, said bar being connected to the outer end of said plunger formovement therewith, and a vehicle supporting member carried by said bar and extending laterally of the casing through said slot.

In testimony whereof I afix my signature.

WILLIAM T. GUIJL DGE. 

